The Seamless.ai Alternative
With Actually Accurate Data
Seamless.ai is known for high bounce rates and stale data. Leedrush runs real-time verification on every contact — 98% deliverability, AI scoring, no outdated records.
Leedrush vs Seamless.ai — Feature Comparison
Last updated June 2026
| Feature | ⚡ Leedrush | Seamless.ai |
|---|---|---|
| Email accuracy | 98% verified (real-time SMTP) | ~60–80% (self-reported) |
| Data freshness | Verified at enrichment time | Cached, often 6–18 months old |
| AI lead scoring | ✓ 0–100 with breakdown | ✗ Not available |
| Bulk CSV enrichment | ✓ Up to 100K rows/batch | ✓ Via export flow |
| Pricing model | Per enrichment — no seat fees | Per seat + credit bundles |
| Free plan | ✓ 500 credits, no card required | ✓ 50 credits/month |
| B2B contact database | 72M+ contacts | 1.3B+ (lower accuracy) |
| Phone number enrichment | ✓ Direct dials | ✓ Mobile + direct |
| CRM integration | HubSpot, Salesforce, Zapier | HubSpot, Salesforce, Outreach |
| Chrome extension | Coming Q3 2026 | ✓ Available |
| API access | ✓ All plans | Pro plans only |
| Bounce guarantee | ✓ Credits refunded on bounce | ✗ No refund policy |
| Starting price | $399/mo · 2,500 credits | ~$147/mo/user (limited) |
Why Teams Leave Seamless.ai for Leedrush
The data quality problem is the #1 reason. But it's not the only one.
Real-time verification, not cached data
Seamless.ai aggregates data and caches it. Leedrush validates every email against live mail servers at the moment of enrichment. Stale data is the #1 source of bounces.
AI quality scores on every lead
Know which leads are worth calling before you dial. Each enriched contact gets a 0–100 AI score based on email deliverability, phone quality, company signals, and ICP fit.
No data accuracy roulette
Seamless.ai's self-reported accuracy is contested by G2 reviews citing 30–40% bounce rates. Leedrush backs accuracy with a credit refund policy on verified bounces.
True batch-first architecture
Leedrush was designed for operations teams enriching thousands of leads at once. Upload CSVs with 50K rows, get enriched results with scores overnight.
Pay for verified contacts only
With Seamless.ai, you burn credits on contacts that bounce. With Leedrush, low-confidence contacts are flagged before you pay — and bounced emails trigger refunds.
GDPR-compliant European data
Leedrush is built with EU data handling standards from day one. EMEA and APAC coverage is stronger than Seamless.ai's US-first database.
Questions About Switching
Does Leedrush have a larger database than Seamless.ai?
Seamless.ai claims 1.3B+ records, but quantity ≠ quality. Many records are unverified or outdated. Leedrush's 72M contact database is smaller but passes multi-layer validation — meaning a higher percentage of records result in successful enrichment. For most B2B use cases (SaaS, professional services, enterprise sales), our coverage is more than sufficient.
How do you handle email bounces?
If an email address we enriched bounces (hard bounce reported by your ESP), we issue a credit refund. We track a running deliverability SLA. This is something Seamless.ai doesn't offer — they charge you regardless of whether the email is deliverable.
Can I test Leedrush's accuracy against my current Seamless.ai list?
Yes. Export a sample of your Seamless.ai contacts as CSV, upload it to Leedrush (free, no card), and run a re-enrichment pass. Compare the email accuracy scores side by side. Most users find 15–35% of their Seamless.ai emails are flagged as risky or invalid in our system.
Is Leedrush's Chrome extension ready?
Our Chrome extension is in development and expected in Q3 2026. In the meantime, our CSV batch workflow and API integration cover the majority of enrichment use cases for SDR teams.
Verify Your First 500 Leads Free
No credit card. No sales call. Upload your CSV and see the accuracy difference in minutes.
Get 500 Free CreditsOr verify up to 50 emails instantly — no account needed.